Diversity in Evolutionary Status and Magnetic Activity among Solar-type Twin Detached Eclipsing Binaries
文献类型：期刊论文
| 作者 | Meng FB(孟芳斌)6,7; Zhu LY(朱俐颖)6,7; Qian, Sheng-Bang5; Li LJ(李临甲)7; Mkrtichian, David1; Liu NP(刘念平)7; Dervişoğlu, Ahmet3,4; Zhao EG(赵二刚)7; Soonthornthum, Boonrucksar1; Zvyagintsev, Sergey2 |
| 刊名 | ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
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| 出版日期 | 2026-03-01 |
| 卷号 | 283期号:1 |
| ISSN号 | 0067-0049 |
| DOI | 10.3847/1538-4365/ae3c9d |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | We present a combined photometric and spectroscopic analysis of four detached eclipsing binaries (KIC 8957954, KIC 10593759, KIC 8302455, and TIC 207398432), all of which exhibit composite G-type spectra and nearly equal mass ratios. Based on survey data and our own observations, we measured radial velocities with the broadening function method, applied the fd3 program for spectral disentangling, and modeled the light curves with the Wilson-Devinney code to determine accurate absolute parameters. The results reveal significant differences in evolutionary stages and magnetic activity despite their nearly equal masses. Both components of KIC 8957954 and KIC 8302455 are on the main sequence; KIC 10593759 has evolved to the subgiant stage; and in TIC 207398432, the secondary has entered the red-giant phase. Stronger magnetic activity is observed in KIC 10593759 and TIC 207398432, characterized by rapid O'Connell effect ratio variations, with the latter also exhibiting multiple superflare events. In addition, the spectral characteristics of TIC 207398432 suggest that it may be part of a hierarchical triple system. This study provides precise absolute parameters for twin binaries and offers important observational evidence for understanding their evolutionary diversity, magnetic activity, and the possible presence of tertiary companions. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | No.2 The Distillery, Glassfields, Avon Street, Bristol, ENGLAND |
| WOS关键词 | COMPONENT SPECTRA ; STELLAR EVOLUTION ; MESA ISOCHRONES ; SYSTEMS ; STARS ; PARAMETERS ; LAMOST ; TESS |
| 资助项目 | Yunnan Fundamental Research Projects[202503AP140013]; the International Partnership of Chinese Academy of Sciences[020GJHZ2023030GC]; the Chinese Academy of Sciences President's International Fellowship Initiative[2025PA0089] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001697501700001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | Yunnan Fundamental Research Projects[202503AP140013] ; the International Partnership of Chinese Academy of Sciences[020GJHZ2023030GC] ; the Chinese Academy of Sciences President's International Fellowship Initiative[2025PA0089] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28996]  |
| 专题 | 云南天文台_双星与变星研究组 |
| 通讯作者 | Zhu LY(朱俐颖) |
| 作者单位 | 1.National Astronomical Research Institute of Thailand, 191 Siriphanich Building, Huay Kaew Road, Chiang Mai 50200, Thailand; 2.Institute of Astronomy, Russian Academy of Sciences, 119017 Pyatnitskaya Street, 48 Moscow, Russia 3.Türkiye National Observatories, DAG, Erzurum 25050, Türkiye; 4.Department of Astronomy and Space Sciences, Atatürk University, Faculty of Science, Erzurum 25050, Türkiye; 5.Department of Astronomy, School of Physics and Astronomy, Yunnan University, Kunming 650091, People’s Republic of China; 6.University of Chinese Academy of Sciences, No. 1 Yanqihu East Road, Huairou District, Beijing 101408, People’s Republic of China; 7.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People’s Republic of China; zhuly@ynao.ac.cn; |
| 推荐引用方式 GB/T 7714 | Meng FB,Zhu LY,Qian, Sheng-Bang,et al. Diversity in Evolutionary Status and Magnetic Activity among Solar-type Twin Detached Eclipsing Binaries[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2026,283(1). |
| APA | 孟芳斌.,朱俐颖.,Qian, Sheng-Bang.,李临甲.,Mkrtichian, David.,...&张嘉.(2026).Diversity in Evolutionary Status and Magnetic Activity among Solar-type Twin Detached Eclipsing Binaries.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,283(1). |
| MLA | 孟芳斌,et al."Diversity in Evolutionary Status and Magnetic Activity among Solar-type Twin Detached Eclipsing Binaries".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 283.1(2026). |
入库方式： OAI收割
来源：云南天文台
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